EU REACH Compliance Checklist for Epichlorohydrin Imports: Annex XVII & TARIC Y-Codes

Import control for epichlorohydrin (ECH; CAS 106-89-8; EC 203-439-8; CLP Annex VI index 603-026-00-6) begins with the harmonised classification under Regulation (EC) No 1272/2008. The substance is listed as Flam. Liq. 3 H226, Acute Tox. 3 H331, H311, H301, Skin Corr. 1B H314, Skin Sens. 1 H317, Carc. 1B H350, and Aquatic Chronic 3 H412. This classification places epichlorohydrin within REACH Annex XVII Entry 28 for carcinogenic category 1B substances, meaning that placing the substance or a mixture on the market for the general public is prohibited when the concentration equals or exceeds 0.1% w/w. A compliance file must document that the import is not intended for general-public supply; that the extended safety data sheet carries the harmonised hazard statements and Annex II exposure scenarios; and that the customs declaration under CN code 2910 30 00 reflects the correct TARIC additional condition. Failure to align SDS section 1.1 product identifier, section 3.2 mixture concentration, and the TARIC Y-code field on the customs declaration dataset produces a stop-and-check event at the EU border. The same file must include the REACH registration number of the EU legal entity responsible for the import when the annual quantity exceeds 1 tonne per legal entity, as required by Title II of Regulation (EC) No 1907/2006.

Does Annex XVII Entry 28 Apply to Bulk Epichlorohydrin as a Carcinogen 1B?

Entry 28 applies as a concentration-based prohibitory control, not as a tonnage-based exemption. A bulk shipment of epichlorohydrin at 99.8% w/w purity contains the substance far above the 0.1% w/w carcinogen threshold, so the restriction is engaged in all cases where the substance or a mixture containing it is offered to the general public. The actual compliance variable is the documented customer class and end-use. Industrial and professional use is not prohibited by Entry 28; however, the supplier must ensure that the substance is not subsequently made available to consumers through a downstream formulation without a separate check against the same threshold. The relevant physicochemical constants for the bulk material are molecular mass 92.52 g/mol, boiling point 116.1 °C at 101.3 kPa, and closed-cup flash point 31 °C. These constants do not alter the restriction thresholds but they drive the exposure scenarios required in the safety data sheet.

Entry 28 does not control articles as such; a cured epoxy resin article is outside the restriction unless another entry applies. Importers should nonetheless retain the end-use statement for each consignment because the downstream conversion path determines whether the epichlorohydrin remains a substance, becomes a component of a mixture, or is reacted into a polymer matrix.

Within the EU Taric database, CN code 2910 30 00 corresponds to 1-chloro-2,3-epoxypropane (epichlorohydrin). The TARIC line for this code may carry one or more additional “Y” condition codes when a Union measure imposes end-use control, surveillance, or a specific import restriction. Y-codes are not fixed product identifiers embedded in the eight-digit CN; they are applied at the Community level as alphanumeric additional codes attached to the ten-digit TARIC line. An importer must query the live TARIC database on the day of customs acceptance because the applicable Y-code for CN 2910 30 00 can change through amendments published in the Official Journal of the European Union. The customs declaration dataset under Annex B of Commission Implementing Regulation (EU) 2015/2447 contains a separate additional code field. If the Y-code is omitted, expired, or inconsistent with the declared end-use, the declaration is rejected and the consignment is held for examination. This field is distinct from the country-of-origin code, the preference code, and the net mass unit. A correct Y-code does not replace REACH registration; it is a customs-level control overlay that can trigger a request for the REACH registration number and the SDS at the border. Importers may obtain a Binding Tariff Information decision under Article 33 of the Union Customs Code for CN 2910 30 00; the BTI confirms the eight-digit classification, while the Y-code is selected separately from the TARIC measures attached to that line. When a trade defence measure applies to a specific exporting country, the TARIC line carries a country-specific Y-code linked to the anti-dumping duty or surveillance mechanism; that Y-code must also be declared in the additional code field.

When a Mixture Containing Epichlorohydrin Crosses the 0.1% w/w Carcinogen Threshold

Formulators importing epichlorohydrin as a raw material often convert it into liquid epoxy resin, where the residual monomer content may be below 0.1% w/w but still detectable. The classification trigger for Carc. 1B is a mass fraction, not a total shipment quantity. The relevant calculation is C_ECH = (m_ECH / m_mixture) × 100. A mixture containing 0.08% w/w epichlorohydrin is below the Entry 28 prohibition for general-public supply on that endpoint, but it may still be subject to skin sensitisation classification at ≥ 0.1% w/w. Because ECH is Skin Sens. 1 with a specific concentration limit of 0.1% w/w, the same numerical threshold drives both carcinogen restriction and sensitisation hazard communication. The SDS must state the exact concentration or a narrow range that does not straddle the 0.1% w/w boundary. According to Article 31 of Regulation (EC) No 1907/2006, the SDS is mandatory for mixtures classified as hazardous, and the carrier substance, residual solvent content, and epichlorohydrin assay must be reported with sufficient precision to reproduce the classification at a Member State enforcement laboratory.

For hazardous mixtures placed on the market, Annex VIII of the CLP Regulation requires notification to the designated poison centre before the mixture is made available in a Member State. A mixture containing epichlorohydrin at or above the skin sensitisation or acute toxicity classification threshold triggers this obligation, and the Unique Formula Identifier must appear on the label or SDS section 1.1. The UFI is not a substitute for REACH registration and does not alter the TARIC Y-code declaration at import.

At production scale, a bisphenol A liquid epoxy resin batch containing residual ECH is sampled at reactor discharge after vacuum stripping at 150 °C and 1 kPa absolute pressure. The stripping time is adjusted until headspace gas chromatographic analysis shows residual ECH below 0.09% w/w to provide a margin below the 0.1% w/w threshold. This margin accounts for analytical uncertainty of ± 10% relative at the reporting limit. When the measured value approaches the threshold, the batch is redirected to industrial-only distribution and the SDS section 3.2 is revised to show the higher concentration band. Do not combine epichlorohydrin with amine-based curatives in bulk because rapid exothermic ring-opening polymerisation can exceed the cooling capacity of a batch reactor; if an epoxy resin formulation requires amine addition, the ECH concentration must first be below the threshold and the reactor must be fitted with a high-pressure rupture disc sized for the maximum adiabatic temperature rise.

Analytical Verification and Batch Homogeneity for Epichlorohydrin Content

Gas chromatography with flame ionisation detection is the conventional technique for epichlorohydrin quantitation in liquid epoxy resins and solvent-borne mixtures. The method requires split injection of a dilute sample in a polar aprotic solvent, a fused-silica capillary column with a phenyl-methylpolysiloxane stationary phase, and calibration against a certified epichlorohydrin reference standard of known purity. The reporting limit should be at or below 0.01% w/w to demonstrate that residual monomer is below the 0.1% w/w regulatory threshold with a comfortable margin. Laboratories performing enforcement work must operate under ISO/IEC 17025:2017 accreditation and must document retention time, resolution from the solvent front, and standard addition recovery. Batch homogeneity is assessed by drawing top, middle, and bottom samples from the storage vessel; the coefficient of variation for epichlorohydrin content in a well-mixed bulk liquid should not exceed 2% relative. Published data for specific end-use formulations is limited when the matrix contains high levels of reactive glycidyl ethers; in such cases, a standard addition method is used to correct for matrix-induced response suppression.

Storage and transfer infrastructure on production-scale import sites must be configured for a flammable, toxic, sensitising liquid. Bulk epichlorohydrin is received in stainless steel tanks with nitrogen blanketing at 0.5–1.0 kPa gauge. The unloading pump is typically a sealless canned-motor or magnetic-drive unit to reduce fugitive emissions from the shaft seal. Vapour displaced during unloading is routed to a carbon bed or thermal oxidiser. Operators use gloves conforming to EN 374 that have been tested specifically for epichlorohydrin permeation; nitrile rubber alone is not recommended for continuous immersion. The transport classification is UN 2023, Class 6.1, Packing Group II. Storage facilities above the Seveso III thresholds in Directive 2012/18/EU must maintain a major-accident prevention policy and safety report, and the inventory level must be reconciled with the customs entry on a monthly basis.

The import dossier must link supplier SDS data to the legal entity named in the customs declaration

The importer of record and the REACH registrant are often not the same legal entity, and this difference is a common border-hold trigger. Under Article 6 of Regulation (EC) No 1907/2006, the EU manufacturer or importer placing epichlorohydrin on the market in quantities above 1 tonne per year must submit a registration. When a non-EU supplier ships epichlorohydrin to an EU customs warehouse, the consignee acting as importer must hold a valid registration for that tonnage band or demonstrate that an only representative has registered the volume. The SDS section 1.3 should identify the supplier and, where available, the registration number. The customs declaration must name the same legal entity that appears on the SDS as importer of record; a mismatch between the SDS supplier and the customs declaration entity creates an evidentiary gap that customs authorities may resolve by sampling and holding the consignment. The TARIC Y-code is not a substitute for the registration number, but the Y-code can instruct the customs declaration system to refer the entry to the competent authority for chemical safety verification. Copies of the registration decision, the Annex II exposure scenarios, and the Annex XVII Entry 28 end-use statement should be attached to the import dossier for the retention period required by the Member State, typically not less than 5 years.